EP1174893B1 - Elektrischer Schalter - Google Patents
Elektrischer Schalter Download PDFInfo
- Publication number
- EP1174893B1 EP1174893B1 EP01102726A EP01102726A EP1174893B1 EP 1174893 B1 EP1174893 B1 EP 1174893B1 EP 01102726 A EP01102726 A EP 01102726A EP 01102726 A EP01102726 A EP 01102726A EP 1174893 B1 EP1174893 B1 EP 1174893B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switch
- switch according
- lever
- button
- push
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/28—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
- H01H2300/048—Snap closing by latched movable contact, wherein the movable contact is held in a minimal distance from the fixed contact during first phase of closing sequence in which a closing spring is charged
Definitions
- the invention relates to a block-type electrical switch, especially in training as a button or push button for power tools.
- a switch according to the preamble of claim 1 is e.g. known from DE-U-8 235 646.
- Such electrical switches find, for example, in power tools only then application if its operation off Space reasons provided only via lever or linkage. Often is the existing installation space for such switch also for ergonomic reasons, with the result that restricted the switches despite high switching power only a small size allowed to have.
- an electrical switch of the input be made available to the aforementioned genus, the smaller in size Size even with higher rated current wear-resistant works.
- an electrical switch made available in block construction, in particular as a push-button or change-over switch for power tools compatible with existing switches and used optionally one or more poles can be designed, with 8A ohmic and inductive load can be realized.
- a push-button or change-over switch for power tools compatible with existing switches and used optionally one or more poles can be designed, with 8A ohmic and inductive load can be realized.
- the new switch is also in the provision of two separate changeover contacts can be used as a brake switch.
- the special conception with change of the direction of effect of the Heidelbergfeder and the momentum switching by releasing a Swivel lever intermediate stop advantageously prevents a Contact erosion by bouncing, since the movable contact on Intermediate stop braked or stopped for a short time, before closing then after clearance.
- the high switching energy is reduced, whereby a significant contribution to the reduction of contact wear as well as for operating the switch with a higher Rated current is reached.
- the construction according to the invention also allows due to the proposed switching mechanism that with small extra effort from a button a changeover switch in Single or multi-pole version without changing the overall size becomes available.
- the arrangement made so that the pivot lever a fork-shaped Recess for the passage of the tension spring when they change the direction of action has.
- the pivot lever a fork-shaped Recess for the passage of the tension spring when they change the direction of action has.
- the tension spring on the other, not hinged to the pivot lever end, in a rocker arm hinged, which is to be acted upon by the actuator preferably to achieve a particularly compact design in the movement path of the actuating member for acting is arranged.
- the Pivoting lever at least one stop surface for an associated Intermediate stop to the swivel lever for a short time intended momentum to stop, the momentum switching then with a further pivoting of the tension spring by their dead center position after removal of the intermediate stop he follows.
- the Schwenkhebel formatanschlag is preferably with a laterally moved out of the path of movement of the pivot lever Element formed. This moving out of the element can by a rotational movement and / or pivoting movement and / or pushing movement be made, the departure from the movement the actuator for the intended momentum switching takes place.
- the Swivel lever intermediate stop on a yoke-shaped Element provided by the actuator laterally can be moved away from the stop surface of the pivot lever.
- the Coupling of movement between actuator and movable Stop can be done according to different mechanical principles be made.
- Especially simple and compact is included a solution in which the actuator with the intermediate stop element, in particular in its yoke-shaped embodiment, connected via a link control. Thereby can be an extremely compact formable, partial and wear-resistant, functionally optimized solution.
- Actuator designed as a pushbutton or as a changeover switch, which works against a compression spring and directly to a Rocker arm attacks.
- FIG. 1 shows a first embodiment of an inventive electrical switch shown as a button 10.
- the Button 10 has a selected as a slider 11 actuator on, on a rocker arm 12 in its pivoting direction attacks, and which at 13 in the manner shown above stored the pivot pin assembly in the housing, not shown is.
- the actuator 11 is opposite its actuating direction acted upon by a compression spring 14, which are similarly represented with their other end Way supported on the housing.
- the pin assembly 13 remote from the end of the rocker arm 12th has formed transversely to its management level on both sides Arms 14 and 15, the Anschfactn 16 and 17 for the articulation a tension spring 18 and 19 (see Figure 4).
- the other end of the tension spring 18 and 19 is on a pivot lever 20, or in the tension spring 19 on a pivot lever 21, near the movable switch contact 22 in the region of the front End of the pivot lever hinged.
- the pivot lever 20 widened behind the articulation point the spring 18 or 19 toward its other end in two spaced legs 23 and 24, the end of each in a housing-fixed pivot bearing mount 25 or 26 held loose is.
- the distance between the legs 23 and 24 and the Swivel bearing receptacles 25 and 26 is for loose passage the tension spring 18 and 19, that is larger than the Switzerlandfeder monmesser.
- the pivot lever 20 and 21, through the Tension spring 18 and 19 in the pivot bearings 25 and 26 foreseen Pivoting are held as are the housing fixed Terminal 27, at the upper end of the pivot bearing 25, 26 are formed of an electrically conductive material.
- An electrical fixed contact 28 is not shown in Way fixed to the housing for contacting the movable switching contact 22 in a plane below the pivot bearing 25 and 26 arranged and electrically to the outside (see Figure 4) for connecting an electrical conductor and its attachment guided by a screw 29.
- the slider 30 has on both sides of the recess 31 laterally open recesses 33 and 34, respectively, to the edge of the slider 30th in Schwenkhebel fundamentalanelle 35 and 36 pass.
- FIG. 4 shows a two-pole push-button with housing lower part 32, in which two parallel buttons with pivot lever 20 and 21 are provided, via the rocker arm 12 first to Between stop 35 and 36 moves and then to transverse displacement the slide 30, the stop surfaces of the pivot lever release.
- FIG. 5 shows a further embodiment of the switch in training as a single-pole reversing switch.
- the modification is here that a second fixed contact 28 'is provided is and the pivot lever 20 between the illustrated Switching position after release by the intermediate stop 35 to the fixed contact 28 'after contact with the intermediate stop 35' in the upper region of the slider 30 bounce momentschaltbar is.
- the described sliding movements of the slider 30 are in FIG. 5 with A (torque activation for fixed contact 28) and B (Moment circuit to the fixed contact 28 ') referred to.
- the reference number 36 ' indicates a insectsanschlags Colour on the other Side of the slide 30, which is for the formation of a bipolar Alternating switch is provided, in which a pivot lever 21 is provided, which is just like the pivot lever 20 of Figure 5 has reciprocal, movable contacts 22 and 22 ' and against a second upper side fixed contact, not shown is working.
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Mechanisms For Operating Contacts (AREA)
Description
- Fig. 1
- ein Ausführungsbeispiel der Ausbildung des erfindungsgemäßen elektrischen Schalters als Taster, welcher sich in Aus-Stellung befindet, wobei zur Vereinfachung das Schaltergehäuse weggelassen wurde;
- Fig. 2
- eine Darstellung gemäß Figur 1, bei sich der bewegbare Schaltkontakt während des Einschaltvorgangs am Zwischenanschlag befindet;
- Fig. 3
- eine Darstellung gemäß Figur 1, wobei sich der Taster nach Freigabe des bewegbaren Schaltkontakts in Einschaltstellung befindet;
- Fig. 4
- ein Ausführungsbeispiel eines erfindungsgemäßen elektrischen Schalters in Ausbildung als zweipoliger Taster, wobei ein Gehäuseunterteil gezeigt ist;
- Fig. 5
- eine weitere Ausbildungsform des erfindungsgemäßen elektrischen Schalters als einpoliger Wechseltaster im eingeschalteten Zustand; und
- Fig. 6
- eine vergrößerte schematisierte Darstellung von Schieber- und Betätigungsorgan während des Einschaltvorgangs.
Claims (9)
- Elektrischer Schalter in Blockbauweise, insbesondere als Taster oder Wechseltaster für Elektrowerkzeuge, mit wenigstens einem Festkontakt (28, 28');
wenigstens einem bewegbaren Schaltkontakt (22, 22') an wenigstens einem Schwenkhebel (20, 21), wobei jeder Schenkhebel (20, 21) durch Ändern der Wirkungsrichtung einer angelenkten Zugfeder (18, 19) zum Schalten verschwenkbar ist, und mit
einem Betätigungsorgan (11), durch das die Wirkungsrichtung jeder Zugfeder (18, 19) änderbar und ein für jeden Schwenkhebel (20, 21) vorgesehener Zwischenanschlag (35, 35', 36, 36') nach Passieren einer Federtotpunktstellung zur Momenteinschaltung des bewegbaren Kontaktes (22, 22') entfernbar ist. - Schalter nach Anspruch 1,
dadurch gekennzeichnet, dass jeder Schwenkhebel (20, 21) eine Ausnehmung (24) für den losen Durchtritt der Zugfedern (18, 19) aufweist. - Schalter nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass jede Zugfeder (18, 19) an ihrem anderem Ende an einem von dem Betätigungsorgan (11) beaufschlagten Kipphebel (12) angelenkt ist. - Schalter nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass jeder Schwenkhebel (20, 21) wenigstens eine Anschlagfläche (37, 37') aufweist. - Schalter nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass jeder Zwischenanschlag (35, 35', 36, 36') für den zugeordneten Schwenkhebel (20, 21) mit einem seitlich aus der Bewegungsbahn der jeweiligen Schwenkhebel (20, 21) herausbewegbaren Element (30) gebildet ist. - Schalter nach Anspruch 5,
dadurch gekennzeichnet, dass der Zwischenanschlag (35, 35', 36, 36') an einem jochförmig ausgebildeten Element (30) vorgesehen ist, dessen seitliche Bewegung von der Bewegung des Betätigungsorgans (11) gesteuert ist. - Schalter nach Anspruch 6,
dadurch gekennzeichnet, dass das Betätigungsorgan (11) mit dem jochförmigen Element (30) über eine Kulissensteuerung verbunden ist. - Schalter nach Anspruch 6 oder 7,
dadurch gekennzeichnet, dass das jochförmige Element als geführter Schieber (30) ausgebildet ist und eine Ausnehmung (31) für den Durchlass des Kipphebels (12) aufweist. - Schalter nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass das Betätigungsorgan (11) als geführter Taster bzw. Wechseltaster ausgebildet ist, der gegen eine Druckfeder (14) arbeitet und direkt an den Kipphebel (12) angreift.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10035685 | 2000-07-21 | ||
DE10035685A DE10035685A1 (de) | 2000-07-21 | 2000-07-21 | Elektrischer Schalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1174893A1 EP1174893A1 (de) | 2002-01-23 |
EP1174893B1 true EP1174893B1 (de) | 2003-07-16 |
Family
ID=7649819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01102726A Expired - Lifetime EP1174893B1 (de) | 2000-07-21 | 2001-02-06 | Elektrischer Schalter |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1174893B1 (de) |
DE (2) | DE10035685A1 (de) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB601361A (en) * | 1945-11-24 | 1948-05-04 | Brookhirst Switchgear Ltd | Improvements in or relating to snap action mechanisms for electric switches, switchgear and the like |
DE888879C (de) * | 1944-04-20 | 1953-09-07 | Aeg | Einrichtung zur Vergleichmaessigung der zum Einschalten von elektrischen Schaltgeraeten aufzuwendenden Kraft |
FR2087663A5 (de) * | 1970-05-27 | 1971-12-31 | Egelec | |
DE8235646U1 (de) * | 1982-12-18 | 1983-06-01 | Westdeutsche Elektrogerätebau GmbH, 4770 Soest | Schaltvorrichtung mit unabhängig von der Betätigungsgeschwindigkeit auslösbarer Sprungfunktion |
JPS6032228A (ja) * | 1983-07-31 | 1985-02-19 | 松下電工株式会社 | 回路しゃ断器 |
DE3342623C2 (de) * | 1983-11-25 | 1986-04-10 | Theben-Werk Zeitautomatik GmbH, 7452 Haigerloch | Elektrischer Kontaktschalter mit Sprungschaltwerk |
DE3545670A1 (de) * | 1985-12-21 | 1987-06-25 | Teves Gmbh Alfred | Schalter mit schlagartiger umschaltung |
DE19722611C1 (de) * | 1997-05-30 | 1998-06-10 | Kostal Leopold Gmbh & Co Kg | Elektrischer Schalter |
-
2000
- 2000-07-21 DE DE10035685A patent/DE10035685A1/de not_active Withdrawn
-
2001
- 2001-02-06 EP EP01102726A patent/EP1174893B1/de not_active Expired - Lifetime
- 2001-02-06 DE DE50100380T patent/DE50100380D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1174893A1 (de) | 2002-01-23 |
DE10035685A1 (de) | 2002-01-31 |
DE50100380D1 (de) | 2003-08-21 |
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